ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,675, issued on May 19, was assigned to MITSUBISHI GAS CHEMICAL COMPANY INC. (Chiyoda-ku, Japan).
"Polyimide resin composition" was invented by Atsushi Sakai (Kanagawa, Japan) and Yuuki Sato (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polyimide resin composition containing a polyimide resin (A) and an antioxidant (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the...